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Anatomy Module 9 > RadioAnat > Flashcards

RadioAnat Flashcards

(61 cards)

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0
Q

Orbital bones: medial wall of the orbit

A

Ethmoid Bone

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1
Q

Orbital bone: Entire roof of the orbit

A

Frontal Bone

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2
Q

Orbital bone: medial wall and floor of the orbit

A

Maxilla Bone

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3
Q

Orbital bone: medial wall

A

Lacrimal bone

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4
Q

Orbital bone: lateral margin and floor of the orbit

A

Zygomatic Bone

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5
Q

Orbital bone: forms the apex

A

Sphenoid bone

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6
Q

MAXILLARY BONE
LACRIMAL BONE
ETHMOID BONE
BODY OF SPHENOID BONE

A

Median orbital wall

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7
Q

smallest bones, anterior part of the medial wall of orbits; in between ethmoid and maxilla

A

LACRIMAL BONE

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8
Q

MAXILLARY BONE
ZYGOMATIC BONE
PALATINE BONE

A

FLOOR OF ORBITAL BONE

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9
Q

ZYGOMATIC BONE

GREATER WING OF THE SPHENOID BONE

A

LATERAL WALL OF ORBITAL BONE

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10
Q

Frontal
Maxillary
Ethmoid
Sphenoid

A

Paranasal Sinuses

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11
Q

Excellent view for

Maxilla, Maxillary sinuses, Zygoma, Zygomatic arches, Rims of orbits (floor) and Nasal bones

A

Water’s View

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12
Q

Excellent view for
Entire rim of orbit - superomedial rim, Ethmoid sinus, Floor of orbit may be well seen in petrous bone are projected below the inferior orbital rim

A

Caldwell’s View

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13
Q

Key structures: Frontal sinus, Maxillary sinus, Frontal process of Zygoma, Body of Zygoma (malar eminence), Temporal process of Zygoma

Rule: smooth, non-disturpted, same contour on both sides

A

Water’s View

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14
Q

Key structures: Ethmoid sinuses and Orbit

Rule: Ethmoid sinuses density should be equal of darker than the orbit, smooth non-disrupted orbital walls

A

Caldwell’s View

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15
Q

Most comprehensive single projection display

A

Water’s view

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16
Q

Excellent view for
Maxillary Sinus: Posterolateral Wall
Zygomatic arch

A

Towne’s View

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17
Q

Key structures: Frontal sinus, Maxillary Sinus, Sphenoid Sinus, Hard Palate, Anterior wall of temporal fossa, Pterygoid plate

A

Towne’s View

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18
Q

Retrobulbar Fat, EOMS, Optic Nerve

A

Orbital Tissue

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19
Q

Superior, Inferior, Medial and Lateral

A

Recti Muscles

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20
Q

Superior and Inferior Oblique

A

Oblique Muscle

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21
Q

is a ring of fibrous tissue that surrounds the optic nerve at its entrance at the apex of the orbit.

A

Annulus of Zinn

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22
Q

Annulus of Zinn is the origin of these muscles except:

a. Superior Rectus
b. Inferior Rectus
c. Lateral Rectus
d. Superior Oblique

A

d. Superior Oblique

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23
Q

Pulley for the Superior Oblique Muscle

A

Trochlea

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24
Water: Bright Fat: Dark Air/Bone: Dark
T2
25
Water: Dark Fat: Bright Air/Bone: Dark
T1
26
15-30 mm from the orbital rim
ANTERIOR ETHMOIDAL FORAMEN
27
20-40 mm from the orbital rim
POSTERIOR ETHMOIDAL FORAMEN
28
T1WI & T2WI: medium to low signal intensity
CORNEA/ SCLERA
29
T1W1: low T2WI: high
ANTERIOR EYE CHAMBER
30
98% water and less than 2% collagen
POSTERIOR EYE CHAMBER
31
65% water and 35% protein | T1WI: intermediate T2WI: low
LENS
32
Demarcates the anterior and posterior ethmoid air cells
Middle Turbinate
33
All the paranasal sinuses drain into the middle meatus, EXCEPT a. posterior ethmoid and sphenoid sinuses b. ethmoid bulla and maxillary sinus c. frontal sinus and maxillary sinus
a.posterior ethmoid and sphenoid sinuses
34
Tympanic Membrane Outer cartilagenous portions Bony or osseous portion Squamous epithelium
Parts of External Auditory Canal
35
Flexible part of Tympanic Membrane
Par flaccida
36
Tense part of Tympanic Membrane
Pars tensa
37
Middle Ear Space: Superior to annulus | body of incus and head of malleus
Epitympanum (Attic)
38
Middle Ear Space: on level with the TM (oval and round windows, long process of process of incus, articulation with stapes, facial nerve in bony canal)
Mesotympanum
39
Below annulus (jugular bulb)
Hypotympanum
40
In anterior recess of middle ear (eustachian tube)
Protympanum
41
Posterior to annulus (sinus, tympani, facial recess)
Retrotympanum
42
Spur - shaped bony projection top of tympanic membrane
Scutum
43
anterior recess of TM, between neck of malleus and pars flaccida of tympanic membrane
Prussak's space
44
most common site of acquired attic cholesteatoma
Prussak's space
45
Head | Manubrium or handle
Malleus (Hammer)
46
Long process Short process Lenticular process
Incus
47
Foot plate Capitulum Ctus
Stapes
48
- arises form cartilaginous and bony margins of eustachian tube - inserts on handle of malleus - dampens ossicular chain
Tensor tympani membrane
49
- opening between middle and inner ear, associated with scala tympani - below oval window
Round window
50
Medial wall of tympanic cavity formed by basal turn of cochlea
Promotory
51
- channel through which the tympanic cavity communicates with the nasopharynx. - approximately 36 mm in length and is directed downward, forward, and medialy, forming an angle of about 45 degrees with the sagittal plane
Eustachian Canal
52
- SEMICIRCULAR CANALS - COCHLEA - VESTIBULE - VESTIBULAR AQUEDUCT
Bony Labyrinth
53
- UTRICLE AND SACCULE - COCHLEAR DUCT - ENDOLYMPHATIC DUCT AND SAC
Membranous Labyrinth
54
3 parts of semicircular canal
- Superior semicircular canal (SSC) - Posterior semicircular canal (PSC) - Horizontal or Lateral semicircular canal (LSC)
55
Axial: apical, middle, and basal turns (NORMAL)
Hamburger Sign
56
2 parts of Aqueducts
Cochlear Aqueduct | Vestibular Aqueduct
57
- Bony canal that passes to posterior fossa dura - Opens lateral to IAM - transmits endolymphatic duct and 2 blood vessels into blind sac (reservoir for excess endolymph)
Vestibular aqueduct
58
Common crus of vestibular aqueduct
union of superior and posterior SC duct
59
Neurovascular Space
Facial nerve canal, Carotid Canal, Jugular Fossa
60
- taste fibers to anterior 2/3 tongue - preganglionic parasympathetic to submandibular and sublingual glands - Courses between incus and handle of melees
Chorda tympani

Anatomy Module 9 (1 decks)

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